Slide Synchronization Server Location

Source Relationship:

http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideUpdateUrl

When a slide is being synchronized with a copy stored on a remote server, this relationship shall be used to target the location where the server copy of the slide is stored.

A package shall contain one Slide Synchronization Server Location relationship for each slide linked with server data, and that relationships shall be an implicit relationship from the corresponding Slide Synchronization Data (§13.3.11) part.

example:
<Relationships xmlns="…">
  <Relationship Id="rId1" 
    Type="http://…/slideupdateUrl" 
    Target="http://www.openxmlformats.org/slides/" type=”External”/>
</Relationships>

A slide synchronization server location shall be located external to the package containing the source relationship (expressed syntactically, the @TargetMode attribute of the <Relationship> element shall be External).